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How fuel deals with circular reference ?

by Dimitris Chloupis

I have a class A that has an instance variable the references an instance of Class B , but also Class B has an instance variable the references an instance of Class A. Basically its a GUI that references its model and the same model referencing the same instance of GUI. How Fuel deals with such scenario because I saw that it created an output of 1.5 mbs for several instances of my model class ? Is there any danger of having such circular references or it does not matter because afterall they are just pointers ?

Nov. 30, 2015

Re: [Pharo-users] Pharo Consortium New Gold Member: Thales

by Tudor Girba

Great news! For everyone not directly involved in the Consortium: The money collected from memberships go towards the infrastructure of Pharo in form of engineering time. This is a key effort to make Pharo a sustainable platform for the long run. That is why these pieces of news are so important. Doru > On Nov 26, 2015, at 2:42 PM, marcus.denker(a)inria.fr wrote: > > The Pharo Consortium is very happy to announce that Thales > has joined the Consortium as an Gold Member. > > About > - Thales: https://www.thalesgroup.com > - Pharo Consortium: http://consortium.pharo.org > > The goal of the Pharo Consortium is to allow companies and institutions to > support the ongoing development and future of Pharo. > > Individuals can support Pharo via the Pharo Association: > > http://association.pharo.org > -- www.tudorgirba.com "Value is always contextual."

Nov. 30, 2015

Re: [Pharo-users] When exactly an object gets deleted from the system ?

by Dimitris Chloupis

and of course you are both correct , I have a circular reference, basically an object A referencing object B which references object A. No wonder why is not gc. Thanks for helping me out spotting this. On Mon, Nov 30, 2015 at 12:56 PM Ferlicot D. Cyril <cyril.ferlicot(a)gmail.com> wrote: > Le 30/11/2015 11:40, Dimitris Chloupis a Ã©crit : > > I am wondering when an instance of a class is garbage collected and > > deleted from the system. > > > > is there a way to manually deleted it ? > > If there is no Object that reference your object you can force a Garbage > collect with "Smalltalk garbageCollect". If your object is still here > you can try to see what point to it with "(X allInstances collectAsSet: > #pointersTo) inspect". > > When the reference is spotted you can try to remove it then garbage > collect again. > > -- > Cyril Ferlicot > > http://www.synectique.eu > > 165 Avenue Bretagne > Lille 59000 France > >

Nov. 30, 2015

Re: [Pharo-users] When exactly an object gets deleted from the system ?

by Esteban Lorenzano

> On 30 Nov 2015, at 11:55, Ferlicot D. Cyril <cyril.ferlicot(a)gmail.com> wrote: > > Le 30/11/2015 11:40, Dimitris Chloupis a Ã©crit : >> I am wondering when an instance of a class is garbage collected and >> deleted from the system. >> >> is there a way to manually deleted it ? > > If there is no Object that reference your object you can force a Garbage > collect with "Smalltalk garbageCollect". If your object is still here > you can try to see what point to it with "(X allInstances collectAsSet: > #pointersTo) inspect". > > When the reference is spotted you can try to remove it then garbage > collect again. forcing a garbage collection is not a recommended procedure. Of course you can do it while testing/developing/etc., but you must not use it as a part of your code :) Esteban > > -- > Cyril Ferlicot > > http://www.synectique.eu > > 165 Avenue Bretagne > Lille 59000 France >

Nov. 30, 2015

Re: [Pharo-users] When exactly an object gets deleted from the system ?

by Ferlicot D. Cyril

Le 30/11/2015 11:40, Dimitris Chloupis a Ã©crit : > I am wondering when an instance of a class is garbage collected and > deleted from the system. > > is there a way to manually deleted it ? If there is no Object that reference your object you can force a Garbage collect with "Smalltalk garbageCollect". If your object is still here you can try to see what point to it with "(X allInstances collectAsSet: #pointersTo) inspect". When the reference is spotted you can try to remove it then garbage collect again. -- Cyril Ferlicot http://www.synectique.eu 165 Avenue Bretagne Lille 59000 France

Nov. 30, 2015

Re: [Pharo-users] When exactly an object gets deleted from the system ?

by Esteban Lorenzano

Hi, > On 30 Nov 2015, at 11:40, Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: > > I am wondering when an instance of a class is garbage collected and deleted from the system. > > is there a way to manually deleted it ? no, that beats the purpose of a garbage collector. butâ¦ it should be cleaned quite fast, if it is not, most probably you are keeping a reference somewhere. Esteban

Nov. 30, 2015

When exactly an object gets deleted from the system ?

by Dimitris Chloupis

I am wondering when an instance of a class is garbage collected and deleted from the system. is there a way to manually deleted it ?

Nov. 30, 2015

Re: [Pharo-users] Basic versioning of GitHub repositories from within Pharo

by Christophe Demarey

Hi, Le 29 nov. 2015 Ã 20:00, Dimitris Chloupis a Ã©crit : > And there lies the trap. > > If you end up making something that works with everything, you will create something that just works with everything instead of something that works very well with one thing. could be. But we do not want to plug everything. Just having the door opened for the next cool VCS. Even if is only used for git it is good to have a Pharo API that is not the GIT API. We do not want git calls mixed everywhere. We want a clean and clear API for versioning. This API also prevents you from git API changes. You will only have one place to update and so on. > Right now Git is by very far the undisputed king of version control and has completely dethroned SVN. King because widely used but other are also as valuable if not more. > Ironically the things that make git integration in pharo so hard is all the thing that are there to decouple it from git , like filetree metadata , or continuous support for mcz and monticello. I do not agree on this point. There is no VCS interoperability layer in Pharo. Tools are directly manipulating Monticello. > In the end you cant have your cake and eat it too. We will have to choose between very good integration with git or average / mediocre integration with multiple backends. again, I cannot agree. It is a bad idea to have calls to an external tool / library wide spread in the image. We need our own API. It is particularly true for git that has an API mixing daily tasks with other power admin commands (rewrite of the history with possible code loss). I do not think we need full support of git in the image, i.e. supporting all commands and options, but only what is needed to do correct versioning from Pharo (special git commands can still be done with command-line). > > On Sun, Nov 29, 2015 at 8:15 PM stepharo <stepharo(a)free.fr> wrote: > What I would like for Pharo is to avoid to be bound to a given back-end > for its versionning. > This master is a step in the right direction > > http://www.hpi.uni-potsdam.de/fileadmin/hpi/source/Technische_Berichte/HPI_… > > Stef > >

Nov. 30, 2015

Re: [Pharo-users] Pharo Consortium New Gold Member: Thales

by EuanM

That's great news. It would be really interesting, and really useful to community-enlargement works, to know: Which part of Thales drove this? What is their specific interest in Pharo? Or what is their current (or proposed) use of Pharo? On 26 November 2015 at 13:42, <marcus.denker(a)inria.fr> wrote: > The Pharo Consortium is very happy to announce that Thales > has joined the Consortium as an Gold Member. > > About > - Thales: https://www.thalesgroup.com > - Pharo Consortium: http://consortium.pharo.org > > The goal of the Pharo Consortium is to allow companies and institutions to > support the ongoing development and future of Pharo. > > Individuals can support Pharo via the Pharo Association: > > http://association.pharo.org >

Nov. 30, 2015

Re: [Pharo-users] Pharo RDBMS Support Survey

by EuanM

I completed it. (There was one question that I found hard to understand - so I commented my response heavily. I can't remember what my issue was - but my comments would remind me) On 26 November 2015 at 03:02, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > Hello all, > > I just created this survey (https://goo.gl/pcc9u8) to collect > information about the users of RDBMS in Pharo. > > Please promote it in the social networks, so I can get as many > responses as possible. > > URL: https://goo.gl/pcc9u8 > > I'll share the results in a month or before if I get 100 responses. :) > > > Thank you! > > > > Esteban A. Maringolo >

Nov. 30, 2015